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(No Model.)

H. 1v1. BOIES.

GAR WHEEL.

No. 290,518. Patented Deo. 18, 1883.

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Nrfrn STATES Arnr Friesa CAR-WHEEL.

SPECIFICATION forming part of Letters Patent No. 290,518, dated December 18, 1883.

Application filed October 10, 1883. (No model.)

To all whom it may con/cern,.-

Be it known that I, HENRY M. Borns, of Scranton, in the State of Pennsylvania, have invented a certain Improvement in Wrought Metal Gar-Wheels, of which the following is a specification.

My, improvement relates to that class of carwheels in which the tires are secured to the peripheries and the hubs to the centers of annular metallic plates; and my invention oonsists in uniting the tire to the hub by means of two radially-corfu gated dished plates bolted together, and preferably having their periphcries turned outward to afford bearings for the tire and offset near their peripheries, to provide an annular groove for the reception of a tongue formed upon the inner surface of the tire. This tongue is transversely perforated to receive the bolts or rivets by which the plates are fastened to the tire. Another series of bolts or rivets may, if desired, be used to secure the plates to each other. The inner portions ot' the plate, in addition to bengvradially corrugated, swell outward, and are provided with central bearings, respectively, upon annular shoulders formed at opposite ends of the hub. The projecting portion of the hub inclosed by the inner edges of the plates is perforated to receive the bolts or rivets by which the plates are fastened to the hub.

The accompanying drawings of a car-Wheel illustrating my invention are as follows, viz:

Figure l is an elevation of the face of the wheel. Fig. 2 is a section through the line X X on Fig. 1. Fig. 8 is a section through the line Y Y, on Fig. 1, showing the radial eorrugations in cross-section.

The drawings represent a car-wheel provided with the hub A, perforated as usual for the reception of the axle. At its opposite ends the hub is reduced in diameter to provide the annular shoulders afa, which afford the bearings for the central portions of the plates B, which are secured to the hub by means of the bolts or rivets A', inserted through the plates and through the holes a', formed in the projecting portion A2 of the hub. The plates B are dished, andhave formed in them the radial corrugations b, so that at a point between the hub and the tire G the portions b of the plates respectively acquire contact with each other. The portions in contact may, if desired, beV fastened together by the bolts or rivets B. Near theirperipheries the plates are provided with offsets B2, for enibracing the opposite sides of the annular tongue c,- fornied upon the inner suri'aee of the tire, and having the perforations o', to receive the bolts c2, by which the plates are fastened to the tire. The peripheries of the plate are preferably bent outwardly, forming the lian ges B3, for bearing upontlie interior of the tire outside of the base or the tongue c. l preferably employ steel for the tire and for the plates.

The thickness of the plates may be varied, as desired; but ordinarily it will be about half an inch. Steel plates of this thickness may be struck up in the described forin by suitable dies. rlhe radial corrugations impart great strength to the plates, and a desirable degree of elasticityY is given the wheel by the disliing or annular eorrugation of the plates.

By this inode of construction the wheel is made comparatively light and yet possesses great strength and durability.

I claim as rny invention- The Wrought-metal car-wheel herein described, the saine consisting, essentially, of a suitably shouldered and perforated hub, two radiallyeorrngated disned plates offset near their peripheries, a tire provided upon its interior With a perforated projecting tongue seated in the annular groove formed by the offsets in the plates, and suitable bolts or rivets fastening the dished plates to each other and to the hub and tire, respectively.

HENRY M. BOIES. Vitnesses:

.Tor-nv D. Susann, L. M. Honron. 

